Experience what life was like in Ireland during the Viking and medieval ages.

One of Ireland's most infamous prisons for rebels including men, women and children.

A pilgrimage around a forbidden peak sacred to four faiths.

Three columns of volcanic rock shoot out of the ocean.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

A winding, blood-red tunnel of hardened lava navigable by foot.

An encyclopedic collection of mammal penises.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

This massive glowering Lenin head gazes out over eastern Siberia.

Monastery complex at the location where bodies of the executed Romanov royal family were discovered.

Church built on the site where the last tsar of Russia and his family were killed.

Former prison camp dedicated to the victims of political repression.

World's largest bell sits on the grounds of the Kremlin in Moscow.

Some of the world's only freshwater seals live in one very special lake in Russia.

Intricate wood carvings on an island in Siberia.

Thanks to a spelling mistake this bizarre beaver-tiger hybrid became the symbol of a Siberian town.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.

Russia's own leaning tower was built on a tragic historical fable.

Replica of mosque destroyed by Russia in the 16th century.

This Russian religious complex is a Frankenstein's chapel that includes influence from almost all the major faiths.